What attorneys should know about retrospective appraisals

A retrospective appraisal asks one straightforward-sounding question: what was this property worth on a specific date in the past? In practice, it's one of the most procedurally fragile assignments an appraiser handles, and the report's defensibility is largely determined before the inspection — by how the engaging attorney briefs the work.

What follows is a working Utah residential appraiser's view of how to engage retrospective work without the round-trips, missing disclosures, and IRS-friction that costs everyone billable hours.

What is a retrospective appraisal?

A retrospective appraisal estimates a property's market value as of a specific historical "effective date" — typically a death, a divorce filing, a casualty loss, or a charitable transfer. The valuation must rely only on data that was available on or before that effective date. Hindsight is contamination.

In Utah, the most common triggers attorneys see:

• Date-of-death valuations for estate tax (IRS Form 706) and step-up in basis under IRC §1014.
• Charitable contribution appraisals under IRS Pub 561 for non-cash donations of real property over $5,000.
• Casualty loss baselines establishing pre-event value before fire, flood, or eminent domain proceedings.
• Divorce filings in Utah's equitable-distribution framework, where the marital-asset valuation date is often the date of separation rather than the trial date.
• Gift tax (Form 709) where a transfer's value at the moment of conveyance must be defended.

Why retrospective ≠ current

If you've never engaged this work before, the easiest mistake is assuming a retrospective appraisal is just a current-market appraisal with a different date label. It isn't.

A current-market appraisal pulls comparable sales from the most recent 90–180 days, applies adjustments, and reconciles to a value as of "today." A retrospective appraisal pulls comparables that closed on or before the effective date, ignores everything that happened after, and adjusts as if today's appraiser were standing in the property's shoes on that date.

The Wasatch Front market alone has moved through three distinct phases since 2020 — pre-pandemic equilibrium, 2021–2022 escalation, and post-2023 plateau — so a date-of-death effective in March 2022 versus March 2024 produces wholly different defensible numbers from the same property in Salt Lake County, Utah County, or Summit County.

Time-adjusted comparables, condition assumptions documented as of the effective date, and a clean market-conditions analysis are the load-bearing pieces.

What attorneys should provide upfront

Most revisions trace back to a brief that lacked one of these pieces:

1. The effective date — explicitly. "Date of death, March 14, 2024" is unambiguous. "Last spring" is not.
2. The intended use. Estate tax filing, gift tax, divorce settlement, charitable substantiation, and casualty loss each carry different reporting expectations under USPAP Standards Rule 2-2. The intended use determines what disclosures the report must contain.
3. The intended users. The IRS, a specific trust, a court, and an estate's attorneys are all distinct named users — the report is restricted to them. A retrospective valuation prepared for a trustee cannot later be handed to the IRS without a use-expansion or revision.
4. Property condition as of the effective date. Photos taken within weeks of the date are gold. Failing that: a written description from the executor, a prior listing photoset, or insurance carrier records. Improvements made after the effective date must be backed out; deterioration that occurred after must be ignored.
5. Any prior valuation work. If a CPA already estimated value for a tax filing, share it. The appraiser doesn't have to agree with it, but they shouldn't be surprised by it later.

Common mistakes that trigger revisions

In rough order of frequency:

• Requesting "just a current value" when an estate filing actually requires a date-of-death number. The IRS will reject a current valuation submitted for date-of-death basis.
• Using current MLS comps without time-adjustment. Even competent appraisers occasionally fail to time-adjust against the FHFA's Utah House Price Index or a defensible local market index. The IRS catches this on review.
• Undocumented condition assumptions. "Assumed average condition" is a red flag; specific photos, prior MLS listings, or executor declarations are not.
• Mixing intended uses. A divorce-filing appraisal cannot moonlight as an estate filing two years later — the reports must be separately prepared (or expressly expanded), or the analysis is exposed to challenge.
• Skipping the alternate valuation date. IRC §2032 lets executors elect a six-months-after-death valuation. Engaging only a date-of-death appraisal forecloses that option without analysis.

USPAP and the Treasury rules — the short version

A retrospective appraisal still complies with USPAP Standards 1 and 2 — same scope of work, same reporting requirements — with an effective-date treatment that explicitly excludes data after the date. For estate tax work, Treasury Reg. § 20.2031-1(b) defines "fair market value" as "the price at which the property would change hands between a willing buyer and a willing seller" and is the legal standard the report must satisfy.

For non-cash charitable contributions over $5,000, IRS Pub 561 requires a "qualified appraisal" by a "qualified appraiser" — meaning USPAP-compliant, signed by an appraiser with verifiable credentials and no disqualifying relationship to the donor. State-licensed Utah Certified Residential Appraisers qualify; signature plus license number on the cover page is the documentation the IRS expects.

Closing

Good retrospective work is half briefing, half analysis. The appraiser determines the analysis quality; the engaging attorney determines half of the briefing quality. When both are tight, you get a report that reads cleanly, defends easily under examination, and doesn't generate revision rounds when the IRS, opposing counsel, or a probate judge starts reading.

If you have a Utah estate, divorce, or contribution-substantiation matter that needs retrospective work, request a quote — most retrospective assignments across Salt Lake, Utah, Davis, Summit, Wasatch, and Tooele counties finish in 5–7 business days from inspection access.